feldspathoid
English
editAlternative forms
editEtymology
editFrom German Feldspath (“feldspar”) + -oid.
Noun
editfeldspathoid (countable and uncountable, plural feldspathoids)
- (mineralogy) Any of a small group of igneous, plutonic, and volcanic minerals formed in magma that did not contain enough silica to satisfy all the chemical bonds. Feldspathoids are silica-poor variants of the feldspar group.
Hyponyms
editDerived terms
editAdjective
editfeldspathoid (not comparable)
- (mineralogy) Resembling a feldspar.